photosyenthesis Flashcards
plant or internal factors are dependent on
genetic predisposition and the growth of plant
in plants light saturation occurs at
10% of full sunlight
carbon dioxide saturation point in c4 and c3 plants resp
360 and 450(mewlL-1)
tpmato and bell pepper are egs for
c3 plants
———–plants have higher temp optimum
tropical plamnts
rubp plus o2
phosphoglycerate
phosphogycolate 2c
particularly large cells around vascular biundles of c4 plants are called
bundlesheath cells
characteristics of bundle sheath cells
large no of choloroplast
thick walls impervious to gaseous exchange
no intercellular spaces
pep is a ——–c molecule
3 c
basic pathway that results in the formation of the sugars
c3 cycle
steps in c4 cycle hatch anmd slack pathway
fixation
decarboxylation
regeneration
steps in calvin cycle
carboxylation
reduction
regeneration
co2 acceptor in c3 cycle
ribulose 1 5 biphosphate
primary co2 fixation product in c3 cycle
3pga
primary co2 fixation product in c3 cycle
3pga
who provided evidence for production of glucose when plants grow
julious von sachs
in green plants ——is the hydrogen donor and is ——–into o2
hydrogen
oxidised
photosyenthesis equation
6co2 +12h2o ——-) c6h1206 +6h20 +602
light reaction is called called
photochemical reactions
dark reactions are also called
carbon reactions
chl a =——-
chl b=——–
xanthophill=——-
carotenoids=————
bright or blue green
yellow green
yellow
yellow to yellow orange
in ——–the reaction centre chlorophil a has an absorption maxima at 700nm
ps1
water splitting complex associated with ps2 is physically located at
inner side of the membrane of thylakoid
the process by which atp is synthesised by cells are called
phosphorilation
possible location for cyclic photophosphosphorylation to occ\ur(ps1)
stroma lammelle
stroma lammelle lack ps2 and nadp reductase enzyme
atp synthase enzyme consists of two parts
one ) ————embedded in the thylakoid membrane and forms and forms a transmembrane channel that carries out facilitated diffusion of protons across membrane
cFo
————–molecule removes a proton from the stroma while transporting the electron
plastoquinone (qb)*hydrogen carrier
electron carrier in the inner side oif membrane
plastocyanine
requirements for chemiosmotic hypothesis
membrane
poroton pump
proton gradient
atp synthase
products of light reaction
atp
nadph
o2
what led to the discovery that the first co2 fixation product was a 3 c compound
use of radioactive c14 by melvin calvin in algal photosynthesis studies
